/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.editor.tool;

import java.awt.event.*;

import self.gee.*;
import self.amigo.editor.*;

abstract public class ABasicCreationTool extends ACreationTool {
  protected IGraphicElement view;
  
  abstract protected void constructElement();
  
  protected IGraphicElement getCreatedElement() {
    return view;
  }
  
  protected void cancelElementCreation() {
    if ( view != null )
      view.remove();
  }
  
  protected void createViewElement( MouseEvent e ) {
    IDiagram diagram = editor.getSource();
    IDiagramLayer layer = diagram.getContext();    
    diagram.beginUpdate();
    constructElement();
    view.setLayer( layer, true );
    view.setLocation( controller.touchDown.x, controller.touchDown.y );
    diagram.endUpdate();
  }
  
  protected void sizeCreatedViewElement( MouseEvent e ) {
    IDiagram diagram = editor.getSource();
    diagram.beginUpdate();
    view.resize( e.getX(), e.getY(), null, e, IGraphicElement.DS_NONE );
    diagram.endUpdate();
  }

  public void mouseReleased(MouseEvent e) {
    super.mouseReleased( e );
    IDiagram diagram = editor.getSource();
    diagram.beginUpdate();
    view.resize( e.getX(), e.getY(), null, e, IGraphicElement.DS_AFTER_LAST );
    diagram.endUpdate();
  }
}
